package com.xinliang.iot;

import androidx.appcompat.app.AppCompatActivity;

import android.annotation.SuppressLint;
import android.graphics.Color;
import android.os.Bundle;

public class MainActivity extends AppCompatActivity {

    @SuppressLint("ResourceType")
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
//        findViewById(R.layout.activity_main).setBackgroundColor(Color.YELLOW);
    }
}